Genuine BMW part 63 21 6 937 453: Rear light "LED" left side panel, white. The number stamped on the part is 63216937453; BMW's catalog files it under the short number 6937453. You will find it on our Lighting shelf, under Rear lights. It supersedes the older number 6920735, so a part carrying that number is the same part.
It fits the E46 convertible (323i, 325i, 330i and M3, 2000–2006), with the M52, M54 or S54 engines — and the European-market versions.
BMW draws it on the Rear light in the side panel (63_0555) diagram. It weighs about 840 g (1.9 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
